Ribosomes are also called as

Options

A. Palade particles
B. Oxysomes
C. F0-F1 particles
D. Cristae

Answer

### Step-by-Step Solution:

1. **Understanding Ribosomes**: Ribosomes are essential cell organelles found in both prokaryotic and eukaryotic cells. They play a crucial role in protein synthesis.

2. **Types of Ribosomes**: In prokaryotic cells, ribosomes are classified as 70S, while in eukaryotic cells, they are classified as 80S. This distinction is important for understanding their function and structure.

3. **Structure of Ribosomes**: Ribosomes have a granular appearance and are composed mainly of ribonucleic acid (RNA) and proteins. Their primary function is to synthesize proteins by translating messenger RNA (mRNA).

4. **Historical Context**: Ribosomes were first observed as dense particles under an electron microscope by scientist George Palade in 1953. This historical observation is significant in the study of cell biology.

5. **Alternative Names**: Due to George Palade's discovery, ribosomes are also referred to as "Pallade particles." This is the correct answer to the question posed.

6. **Eliminating Incorrect Options**: The other options provided (Oxizome, FOF1 particle, Cristae) are not related to ribosomes. These terms are associated with mitochondria and their functions, such as ATP production.

7. **Conclusion**: Based on the information gathered, the correct answer to the question "Ribosomes are also called as" is "Pallade particles."